Cruise Control System

DTC 21 OPEN VEHICLE SPEED SENSOR CIRCUIT

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The vehicle speed sensor circuit is sent to cruise control ECU as vehicle speed signal. For each rotation of the shaft, the vehicle speed sensor sends a signal through the combination meter to the cruise control ECU (See the following chart). The ECU calculates the vehicle speed from this pulse frequency.

Wiring Diagram:

Step 1 - 2:

Step 3 - 6:

INSPECTION PROCEDURE

HINT: In case of using the hand-held tester, start the inspection from step 1 and in case of not using the hand-held tester, start from step 3.